Wang, Xiangxi
Ren, Jingshan
Gao, Qiang
Hu, Zhongyu
Sun, Yao
Li, Xuemei
Rowlands, David J.
Yin, Weidong
Wang, Junzhi
Stuart, David I.
Rao, Zihe
Fry, Elizabeth E.
Article History
Received: 12 May 2014
Accepted: 28 August 2014
First Online: 19 October 2014
Competing interests
: The authors declare no competing financial interests.